Device I/O filter crashes when selecting VB Virtual Audio Cable as output

[Lordmau5]

I got a 2 PC setup and I'm sending my good mic from my streaming PC to my gaming PC via. NDI and 2 OBS instances.
I tried adding the atkAudio Device I/O filter to the receiving end, going to Open Device Settings, then selecting the VB Virtual Audio Cable and trying to enable one of the output channels, which caused OBS to crash.

Doesn't happen with the Audio Monitor plugin by Exeldro, which I've used before.

Crash 2025-07-22 10-43-15.txt

Tested with the newest version as of writing, 0.14.0

[atkAudioUser]

Thank you for reporting this! Should be fixed now.

https://github.com/atkAudio/PluginForObsRelease/releases/tag/0.14.2

[Lordmau5]

Can confirm, doesn't crash for me anymore! :)
Someone else reported the same crash in the OBS Discord as well and I assume it would be fixed for them, too
(I guess it's best to keep it open until they report it's working fine for them as well, but I expect it will)

[atkAudioUser]

Yes, it was a fairly straightforward issue and fix. Generic channel count mismatch between audio buffer and device.